docs(readme): Add video tutorial from the Devcon23 conference

README.md

@@ -120,6 +120,8 @@ This can be combined with other targets, ie `idf.py -p PORT erase-flash flash` w
 
 * Documentation for the latest version: https://docs.espressif.com/projects/esp-idf/. This documentation is built from the [docs directory](docs) of this repository.
 
+* [Beginner's Guide to Key Concepts and Resources of ESP-IDF](https://youtu.be/J8zc8mMNKtc?feature=shared)
+
 * The [esp32.com forum](https://esp32.com/) is a place to ask questions and find community resources.
 
 * [Check the Issues section on github](https://github.com/espressif/esp-idf/issues) if you find a bug or have a feature request. Please check existing Issues before opening a new one.

README_CN.md

@@ -120,6 +120,8 @@ ESP-IDF 中的子模块采用相对路径（[详见 .gitmodules 文件](.gitmodu
 
 * 最新版的文档：https://docs.espressif.com/projects/esp-idf/ ，该文档是由本仓库 [docs 目录](docs) 构建得到。
 
+* [初学者指南：主要概念和资源](https://www.bilibili.com/video/BV1114y1r7du/) 
+
 * 可以前往 [esp32.com 论坛](https://esp32.com/) 提问，挖掘社区资源。
 
 * 如果你在使用中发现了错误或者需要新的功能，请先[查看 GitHub Issues](https://github.com/espressif/esp-idf/issues)，确保该问题没有重复提交。